- Full text PDF available (246)
- This year (11)
- Last 5 years (93)
- Last 10 years (189)
We introduce a new approach to computing answer sets of logic programs, based on concepts from constraint processing (CSP) and satisfiability checking (SAT). The idea is to view inferences in answer set programming (ASP) as unit propagation on no-goods. This provides us with a uniform constraint-based framework for the different kinds of inferences in ASP.… (More)
We describe a new grounder system for logic programs under answer set semantics, called GrinGo. Our approach combines and extends techniques from the two primary grounding approaches of lparse and dlv. A major emphasis lies on an extensible design that allows for an easy incorporation of new language features in an efficient system environment. A major… (More)
We present a new approach to integrating Constraint Processing (CP) techniques into Answer Set Programming (ASP). Based on an alternative semantic approach, we develop an algorithmic framework for conflict-driven ASP solving that exploits CP solving capacities. A significant technical issue concerns the combination of conflict information from different… (More)
We introduce an approach to computing answer sets of logic programs, based on concepts successfully applied in Satisfiability (SAT) checking. The idea is to view inferences in Answer Set Programming (ASP) as unit propagation on nogoods. This provides us with a uniform constraint-based framework capturing diverse inferences encountered in ASP solving.… (More)
We describe the major new features emerging from a significant redesign of the grounder gringo, building upon a grounding algorithm based on semi-naive database evaluation. Unlike previous versions, rules only need to be safe rather than domain-restricted.
We describe the conflict-driven answer set solver clasp, which is based on concepts from constraint processing (CSP) and satisfiability checking (SAT). We detail its system architecture and major features, and provide a systematic empirical evaluation of its features.
Potassco Slide Packages are licensed under a Creative Commons Attribution 3.0 Unported License.
We introduce the first approach to Reactive Answer Set Programming, aiming at reasoning about real-time dynamic systems running online in changing environments. We start by laying the theoretical foundations by appeal to module theory. With this, we elaborate upon the composition of the various offline and online programs in order to pave the way for… (More)
submitted [n/a]; revised [n/a]; accepted [n/a] Abstract We present the new ASP system clingo 4. Unlike its predecessors, being mere monolithic combinations of the grounder gringo with the solver clasp, the new clingo 4 series offers high-level constructs for realizing complex reasoning processes. Among others, such processes feature advanced forms of… (More)